65456385047 has 4 divisors (see below), whose sum is σ = 69306760656. Its totient is φ = 61606009440.

The previous prime is 65456385037. The next prime is 65456385061. The reversal of 65456385047 is 74058365456.

It is a happy number.

65456385047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65456385047 - 2⁴ = 65456385031 is a prime.

It is a super-2 number, since 2×65456385047² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65456385047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65456385037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1925187779 + ... + 1925187812.

It is an arithmetic number, because the mean of its divisors is an integer number (17326690164).

Almost surely, 2^65456385047 is an apocalyptic number.

65456385047 is a deficient number, since it is larger than the sum of its proper divisors (3850375609).

65456385047 is a wasteful number, since it uses less digits than its factorization.

65456385047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3850375608.

The product of its (nonzero) digits is 12096000, while the sum is 53.

The spelling of 65456385047 in words is "sixty-five billion, four hundred fifty-six million, three hundred eighty-five thousand, forty-seven".